Alex and Zach in 1935?

I found the following picture on a blog I read called "Shorpy - The 100-Year-Old Photo Blog" Here is a link to a larger version of the Photo. There are some amazing photos there and new ones are posted every day.

The younger child could pass for Zach's twin. This could be Alex and Zach if they lived 75 years ago in Arkansas.

I look at photo's like this and hundreds of questions run through my mind. Was life for them as tough as it looks? Were they happy? What became of them? What were their dreams, and their parents dreams for them?